ISO6721

{
  "schema_version": 1,
  "type": "component",
  "slug": "iso6721",
  "title": "ISO6721",
  "brief": "TI dual-channel digital isolator, SOIC-8. One forward + one reverse channel, 3 kVrms, up to 100 Mbps, low power. Datasheet-verified.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "digital-isolator",
    "galvanic-isolation",
    "soic-8",
    "texas-instruments"
  ],
  "component": {
    "mpn": "ISO6721",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "Digital isolator",
    "datasheet": "https://www.ti.com/lit/ds/symlink/iso6721.pdf",
    "parts": {
      "symbol": "iso6721.kicad_sym",
      "footprint": "iso6721.kicad_mod",
      "model_3d": "iso6721-etched.glb",
      "model_3d_plain": "iso6721.glb",
      "model_3d_step": "iso6721-etched.step",
      "model_3d_step_plain": "iso6721.step",
      "lbr": "iso6721.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "VCC1",
        "type": "power_in",
        "description": "Side-1 power supply, 1.71 V to 5.5 V referenced to GND1."
      },
      {
        "number": "2",
        "name": "OUTA",
        "type": "output",
        "description": "Isolated push-pull digital output for channel A (driven by INA on side 2), CMOS/LVCMOS levels referenced to VCC1/GND1."
      },
      {
        "number": "3",
        "name": "INB",
        "type": "input",
        "description": "Digital input for channel B, CMOS/LVCMOS levels referenced to VCC1/GND1."
      },
      {
        "number": "4",
        "name": "GND1",
        "type": "power_in",
        "description": "Ground return for VCC1 (side 1)."
      },
      {
        "number": "5",
        "name": "GND2",
        "type": "power_in",
        "description": "Ground return for VCC2 (side 2)."
      },
      {
        "number": "6",
        "name": "OUTB",
        "type": "output",
        "description": "Isolated push-pull digital output for channel B (driven by INB on side 1), CMOS/LVCMOS levels referenced to VCC2/GND2."
      },
      {
        "number": "7",
        "name": "INA",
        "type": "input",
        "description": "Digital input for channel A, CMOS/LVCMOS levels referenced to VCC2/GND2."
      },
      {
        "number": "8",
        "name": "VCC2",
        "type": "power_in",
        "description": "Side-2 power supply, 1.71 V to 5.5 V referenced to GND2."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/iso6721.pdf",
        "pages": 48,
        "sha256": "b4ed1e5c2b8d5587",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "iso6721.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "iso6721-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "569714163bc115af382df165d35223c249a92b776e83afa442bc0562ad6d01dc",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Type": "Dual-channel digital isolator (1 forward + 1 reverse)",
      "Isolation": "3000 Vrms (SOIC-8)",
      "Data rate": "Up to 100 Mbps",
      "CMTI": "100 kV/us (typ)",
      "Supply (each side)": "1.71-5.5 V",
      "Default output": "High or low (part suffix)",
      "Package": "SOIC-8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "iso6721",
    "digital isolator",
    "low power isolator",
    "dual channel signal isolator"
  ],
  "discovery_pitch": "TI ISO6721 dual-channel digital isolator (SOIC-8) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "iso6721.kicad_sym",
    "iso6721.kicad_mod",
    "iso6721.glb",
    "iso6721.step",
    "iso6721.lbr",
    "docs/hero.png",
    "docs/iso6721-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "iso6721-etched.step"
  ],
  "variants": [
    {
      "mpn": "ISO6721BDR (SOIC-8, default-high)",
      "kind": "packaging"
    },
    {
      "mpn": "ISO6721DR (basic isolation)",
      "kind": "packaging"
    },
    {
      "mpn": "ISO6721FDR (default-low)",
      "kind": "packaging"
    }
  ]
}